Change getting deserialisable objects

Author: Stigmatoz

src/storage/local-storage.ts

@@ -1,19 +1,21 @@
 import { IStorage } from "./storage-interface";
-import { StorageParams } from "./storage-params";
+import { StorageDeserializeParam, StorageDeserializeType, StorageParams, createDeserializeParambject } from "./storage-params";
 import { Tab } from "../entity/tab";
 import Browser from 'webextension-polyfill';
 import { isEmpty } from "../common/utility";
 
 export class LocalStorage implements IStorage {
-    async getTabs(): Promise<Tab[]> {
+    async getDeserializeList(param: StorageDeserializeParam): Promise<StorageDeserializeType[]> {
         return new Promise(async resolve => {
-            const { tabs } = await Browser.storage.local.get(StorageParams.TABS);
-            if (tabs != undefined){
-                let tempTabs: Tab[] = [];
-                for (let i = 0; i < tabs.length; i++) {
-                    tempTabs.push(new Tab().deserialize(tabs[i]));
+            const obj = await Browser.storage.local.get(param);
+            const list = obj[param];
+            if (list != undefined){
+                let tempList:StorageDeserializeType[] = [];
+                for (let i = 0; i < list.length; i++) {
+                    const obj = createDeserializeParambject(param);
+                    tempList.push(obj.deserialize(list[i]));
                 }
-                return resolve(tempTabs);
+                return resolve(tempList);
             }
             else resolve([]);
         });

src/storage/storage-interface.ts

@@ -1,8 +1,8 @@
-import { StorageParams } from "./storage-params";
+import { StorageDeserializeParam, StorageDeserializeType, StorageParams } from "./storage-params";
 import { Tab } from "../entity/tab";
 
 export interface IStorage {
-    getTabs(): Promise<Tab[]>;
+    getDeserializeList(param: StorageDeserializeParam): Promise<StorageDeserializeType[]>;
     saveTabs(value:Tab[]): Promise<void>;
     saveValue(name:StorageParams, value: any): Promise<void>;
     getValue(name:StorageParams, defaultValue?: any): Promise<any>;

src/storage/storage-params.ts

@@ -1,3 +1,6 @@
+import { Tab } from "../entity/tab";
+import { TimeInterval } from "../entity/time-interval";
+
 export enum StorageParams {
     TABS = 'tabs',
     BLACK_LIST = 'black_list',
@@ -14,6 +17,20 @@ export enum StorageParams {
     SHOW_HINT = 'show_hint',
 }
 
+export enum StorageDeserializeParam{
+    TABS = 'tabs',
+    TIMEINTERVAL_LIST = 'time_interval',
+}
+
+export function createDeserializeParambject(param:StorageDeserializeParam): StorageDeserializeType{
+    switch (param){
+        case StorageDeserializeParam.TABS: return new Tab();
+        case StorageDeserializeParam.TIMEINTERVAL_LIST: return new TimeInterval();
+    }
+}
+
+export type StorageDeserializeType = Tab | TimeInterval;
+
 export enum InactivityInterval {
     Seconds_30 = 30,
     Seconds_45 = 45,